Plant Health Care
Many of the tree species, which have been planted in our desert are not well suited for our harsh soil conditions. Therefore, they need annual supplemental Arizona tree fertilization. To provide this, we “Root Feed” or inject nutrients at high pressure in a liquid form throughout the root zone where they are needed.
Ralph Spilsbury, founder and President of Tree Doctors Inc., holds a Ph.D. in plant science. As a result of his frustration with the ineffectiveness of most fertilizers ability to correct the deficiencies so common to our area, he researched and developed the Arizona tree fertilizer blends which we use.